Abstract: With the deepening of corporate reform of railway enterprises, the capitalization of railway data and serving for the work theme of “strengthening the foundation, reaching the standard, improving quality and efficiency” have become more and more urgent needs of railway enterprises. At present, railway data asset management is also facing some problems, such as unclear asset inventory, difficulty in data sharing, lack of security classification and non-standard master data. This paper defines the important links of railway data asset management. Based on the service capability and development engines of railway data service platform, a suite of data asset management applications are constructed, which realizes whole-process data asset management involving inventory, access, security classification and sharing, and achieves good application effect in practice.actice.